NL HOME Power Lock Bathroom Suction Cup Hook Holder, Strong Stainless Steel Hanger for Towel, Bath Robe, Coat, Silver, by Multipurpose stainless steel vacuum cup holder or hanger hook. Color: Silver Chrome Heavy Duty Quality: Each suction cup metal hook can hold up to 20 lb (10 kg) with correct installation Materials: high quality ABS plastic, premium grade stainless steel and rubber. Size: 2.3'' Diameter INSTALLATION: NO drilling NO screws. Incredibly easy to install. Wipe clean and wipe dry the surface ATTENTION: Only Fit for any NON-POROUS & SMOOTH surface . CANNOT maintain on porous or rough surfaces: Wood, Marble, Fiberglass, Paint wall, Porcelain , Nano Tiles , Plaster and wood , or across grout lines. Best gift ideas for business or family!